[VOL-3080] Introducing Mac Learning application in voltha-onos image

Aso moving to 2.2-latest to get all the recent changes introduced in olt pipeliner.

Change-Id: I3ac6984f0be0b8660afbcf9c721e3db575b2a6ad
diff --git a/VERSION b/VERSION
index a11f6ae..988a683 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.1.0-dev6
+4.1.0-dev7